50121560357 has 4 divisors (see below), whose sum is σ = 54678065856. Its totient is φ = 45565054860.

The previous prime is 50121560317. The next prime is 50121560429. The reversal of 50121560357 is 75306512105.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50121560357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50121560317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2278252733 + ... + 2278252754.

It is an arithmetic number, because the mean of its divisors is an integer number (13669516464).

Almost surely, 2^50121560357 is an apocalyptic number.

It is an amenable number.

50121560357 is a deficient number, since it is larger than the sum of its proper divisors (4556505499).

50121560357 is a wasteful number, since it uses less digits than its factorization.

50121560357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4556505498.

The product of its (nonzero) digits is 31500, while the sum is 35.

The spelling of 50121560357 in words is "fifty billion, one hundred twenty-one million, five hundred sixty thousand, three hundred fifty-seven".